US UV Forecast

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Updated: 12:00 AM GMT on July 02, 2015
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Weather Underground Forecast for Thursday, July 02, 2015

An area of low pressure will move across the Mississippi Valley on Thursday, while a ridge of high pressure will persist over the western third of the country.

A cold frontal boundary will extend west southwestward over the Mid-Atlantic, the Ohio Valley and the middle Mississippi Valley. A low pressure system will deepen along this frontal boundary, focusing over the Mississippi Valley. As this system transitions eastward, it will bring chances of strong to severe thunderstorms to the southern Plains, the Mississippi Valley, the Tennessee Valley and the Deep South. Severe thunderstorms will be possible in northern Texas, Oklahoma, southern Kansas, Arkansas, southern Missouri, southwest Kentucky, Tennessee, northern Mississippi, northern Alabama, northern Georgia, northwest South Carolina and western North Carolina. These thunderstorms will be capable of producing large hail, dangerous straight line winds and isolated tornadoes. In addition, heavy rain will bring threats of flash flooding to southwest Missouri, northeast Arkansas, southern Kentucky and Tennessee. A cluster of showers and thunderstorms will also fire up over the northern and central Plains.

Meanwhile, a ridge of high pressure will park itself over the Great Basin and the Intermountain West. Temperatures will remain 10 to 20 degrees above normal across the Northwest. Monsoonal moisture will also aid in the development of showers and thunderstorms across the Rockies, the Great Basin and the Sierra Nevada on Thursday.


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